Are you looking for ways on how to level uneven concrete floors?
Uneven concrete floors look unsightly. If you are a homeowner, it also puts you and your family’s safety in jeopardy. If you are a commercial space owner, it can lead to structural issues over time.
So, leveling your concrete floor rewards several benefits.
In this guide, Concrete Pro Services will walk you through the step-by-step process of leveling an uneven concrete floor—covering both DIY methods and professional solutions to help you decide the best approach.
Let’s start!
What Makes a Concrete Floor Uneven?
Identifying the root cause of uneven concrete floors offers better ways to fix them, as some problems may require additional repairs or foundation work.
So, before jumping into the leveling process, let’s understand first what makes concrete floors uneven. Here are a few reasons common reasons:
- Settling or shifting of the foundation. Soil moves over time; and this movement can cause concrete slabs to shift and sink in some areas.
- Poor installation. If the original concrete wasn’t poured and leveled correctly, it could lead to an uneven surface.
- Moisture issues. Water damage, leaks, or high humidity can weaken the concrete, causing cracks and dips.
- Heavy loads. Excessive weight on a specific area can compress the concrete, creating an uneven surface.
Step-by-Step Guide to Leveling a Concrete Floor
Step #1: Assess the Floor’s Unevenness
To start, determine first the variations in height. Use a straight edge or laser level to locate the highest and lowest points. Then mark these areas to create a visual guide for the leveling process.
Step #2: Clean the Surface
Next is to clean the surface. Make sure to wipe away dust, debris, grease, and old adhesive. You may want to thoroughly sweep and vacuum the area too.
For any remaining stubborn stains, use a degreaser or concrete cleaner as needed.
Step #3: Gather Tools and Materials
Depending on the severity of the unevenness, you may need different tools and materials. Here are some commonly used items:
- Leveling compound (self-leveling or traditional concrete mix)
- Concrete grinder or sander
- Primer (for self-leveling compound)
- Trowel or squeegee
- Measuring tape and straight edge
- Buckets and mixing tools
- Protective gear (gloves, safety glasses, dust mask)
Step #4: Choose the Right Leveling Method
The method you choose will depend on how severe the unevenness is. Here’s a guideline:
| Severity | Leveling Method |
| Minor dips (less than ¼ inch) | Use a concrete grinder to smooth out the high spots |
| Moderate unevenness (¼ to 1-inch) | Use a self-leveling compound |
| Severe unevenness (more than 1-inch) | May require a traditional concrete mix or a professional concrete contractor |
Step #5: Prepare and Prime the Surface
Next, apply a primer to the concrete floor before using a self-leveling compound. The primer promotes proper adhesion and minimizes the risk of air bubbles.
Step #6: Mix and Apply the Leveling Compound
After that, prepare the leveling compound according to the manufacturer’s directions. Pour the mixture into the low areas of the floor and use a trowel or squeegee to distribute it evenly.
The self-leveling compound will flow and settle on its own, creating a smooth, level surface. For larger areas, work in manageable sections to guarantee complete and even coverage.
Step #7: Let the Floor Cure
Let the leveling compound dry and cure completely, following the manufacturer’s specified time. This curing period can vary from a few hours to a full 24 hours, depending on the product used and the surrounding environmental conditions.
Step #8: Sand and Finish
After the leveling compound has fully cured, inspect the surface for any remaining unevenness. Smooth out any imperfections using a concrete sander or grinder. For a perfectly smooth finish, a second coat of leveling compound may be necessary.
DIY vs. Hiring a Professional: What’s Best for You?
Doing DIY vs. paying for a professional concrete repair service has its own benefits and disadvantages. While you can save money from diy-ing, a professional contractor has specialized tools that can ensure long-lasting and precise results.
| When to DIY? | When to Hire a Professional? |
| If it is minor or less than 1 inch deep | If the floor has deep cracks and other structural issues |
| If you have the tools and time | If your goal is to have a smooth and professional-looking concrete finish |
| If you are knowledgeable working with concrete and leveling compounds | If the unevenness is more than 1-inch deep and requires extensive repairs |
How to Prevent Unevenness in Concrete Floors?
To maintain a level concrete floor in the long run, consider these preventative measures:
- Address moisture issues. Install proper drainage systems and use moisture barriers if necessary.
- Use high-quality concrete mix. Investing in a good-quality mix ensures better durability.
- Avoid placing heavy loads in concentrated areas. Distribute weight evenly across the surface.
- Schedule routine inspections. Regularly check for cracks or early signs of shifting to prevent major problems.
Level Uneven Floors with Concrete Pro Services
Leveling an uneven concrete floor is a worthwhile investment that improves safety, aesthetics, and functionality. If you are considering professional concrete leveling services, Concrete Pro Services can help.
Concrete Pro Services offers comprehensive concrete solutions. We are Parker’s, Denver’s, and Aurora’s trusted partner in building firm and lasting foundations.
Contact us today at (720) 263-1669 for a free consultation or send us a message.